CVE-2026-12659

Summary

A denial-of-service security issue exists in the affected products. The security issue stems from improper handling of exceptional conditions when processing crafted CIP packets sent to the adapter. A power cycle is required to recover the module and associated I/O.

Affected Software

VendorProductVersion RangeStatus
Rockwell AutomationThe FLEX 5000® EtherNet/IP Adapterversion 6.011affected

Weaknesses

  • CWE-415: CWE-415 Double free

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References